TWI514196B - Tactile feedback apparatus - Google Patents

Tactile feedback apparatus Download PDF

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Publication number
TWI514196B
TWI514196B TW102127976A TW102127976A TWI514196B TW I514196 B TWI514196 B TW I514196B TW 102127976 A TW102127976 A TW 102127976A TW 102127976 A TW102127976 A TW 102127976A TW I514196 B TWI514196 B TW I514196B
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TW
Taiwan
Prior art keywords
signal
electrode
haptic feedback
signal generator
feedback device
Prior art date
Application number
TW102127976A
Other languages
Chinese (zh)
Other versions
TW201506680A (en
Inventor
Chih Chia Chang
Chen Pang Kung
Original Assignee
Ind Tech Res Inst
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Priority to TW102127976A priority Critical patent/TWI514196B/en
Publication of TW201506680A publication Critical patent/TW201506680A/en
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Publication of TWI514196B publication Critical patent/TWI514196B/en

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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B6/00Tactile signalling systems, e.g. personal calling systems

Description

Tactile feedback device

The present disclosure relates to a feedback device, and more particularly to a tactile feedback device.

In today's electronic technology, it has become a trend to improve the interaction between electronic devices and users through touch technology. Under the use of the touch panel, the user can transmit a control command to the electronic device through the touch panel through the finger or the touch input device. Compared with the traditional keyboard, this method can simply and directly perform the control action of the electronic device. However, this control method through the touch panel lacks the response of the real tactile feedback. The definition of the tactile feedback is mainly the sensing action generated when the finger or the touch input device touches the screen, instead of Only visual changes.

The present disclosure provides a tactile feedback device including a signal generator and a tactile feedback structure. The signal generator provides a drive signal. Tactile feedback structure connection signal The generator, in response to the drive signal, provides a tactile feedback signal when the surface of the object is touched or when the outer casing of the tactile feedback device is touched. Among them, the tactile feedback signal is associated with the tactile sensation. The haptic feedback signal is associated with the electrical characteristics of the driving signal.

The above described features and advantages of the present invention will be more apparent from the following description.

100, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400‧‧‧ haptic feedback devices

110‧‧‧Signal Generator

1110‧‧‧Accelerator

120‧‧‧Tactile feedback structure

1210‧‧‧Gyro

122‧‧‧ electrodes

123, 132, 610, 710‧‧‧ specific electrodes

124‧‧‧Insulator

124'‧‧‧Piezoelectric film

125, 126, 134‧‧‧ specific insulators

130‧‧‧Detection module

136‧‧‧Sensor unit

1310‧‧‧Wireless communication unit

1410‧‧‧temperature sensing layer

210‧‧‧Shell

220‧‧‧Endpoint

630‧‧‧ grip

1010‧‧‧Light sensor

AS‧‧‧Start signal

DS‧‧‧ drive signal

SS‧‧‧Sensior signal

SW‧‧ switch

1 is a functional block diagram of a haptic feedback device according to an embodiment of the present disclosure.

2 is a schematic diagram of a haptic feedback device according to an embodiment of the disclosure.

3 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 2.

4A is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 3.

4B is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 4A.

FIG. 5A is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 3. FIG.

FIG. 5B is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 5A.

FIG. 6 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 3. FIG.

FIG. 7 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 6.

FIG. 8A is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 3. FIG.

FIG. 8B is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 8A.

FIG. 9A is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 3. FIG.

FIG. 9B is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 9A.

FIG. 10 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 3. FIG.

11 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 2.

FIG. 12 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 2. FIG.

FIG. 13 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 2. FIG.

FIG. 14 is a schematic diagram of a tactile feedback device according to the embodiment of FIG.

1 is a functional block diagram of a haptic feedback device according to an embodiment of the present disclosure. In the present embodiment, when the user touches the surface of an object through the tactile feedback device 100, the tactile feedback device 100 can generate an interaction force with the surface of the object due to the electric field after performing a specific mechanism. After the interaction force is generated, the user can correspondingly feel the tactile sensation fed back by the tactile feedback device 100. The tactile sensation is, for example, a rough feeling, but may be described in other ways by the user's perception of the tactile sensation, and the disclosure is not limited thereto. The surface of the object may include a conductive electrode, a conductive electrode covered by any at least one single insulating layer, a conductive electrode covered by any at least one single semiconductor layer, a conductive electrode covered by any at least one single insulating layer mixed semiconductor structure, and an insulating layer An insulating layer covered with any at least a single semiconductor layer, a semiconductor layer, and/or a semiconductor layer covered by any at least a single insulating layer.

Referring to FIG. 1 , the haptic feedback device 100 includes a signal generator 110 and a haptic feedback structure 120 . The signal generator 110 can provide the driving signal DS after receiving the power supplied by the power supply module (not shown). The power supply module example Such as AC or DC. The driving signal DS is, for example, a sine wave signal, but the disclosure is not limited thereto.

The haptic feedback structure 120 is coupled to the signal generator 110 for reacting to the driving signal DS to provide a tactile feedback signal when the haptic feedback device 100 touches the surface of the object. The haptic feedback signal is, for example, a voltage signal corresponding to the haptic feedback structure 120 according to the driving signal DS, but is not limited thereto. At this time, if the surface of the object also has an electric field of the same polarity as the voltage signal, a mutually exclusive force can be generated between the tactile feedback structure 120 and the surface of the object. In addition, if the surface of the object also has an electric field of opposite polarity to the voltage signal, a mutual attraction force can be generated between the tactile feedback structure 120 and the surface of the object. When the mutual repulsive or attractive force is large enough, the tactile feedback device 100 can be made to have a rough feeling during the movement of the surface of the object.

For example, when the haptic feedback structure 120 generates a haptic feedback signal according to the driving signal DS characterized as a sine wave signal, and the surface of the object has a positive electric field, the haptic feedback device 100 can be touched (or quite close to) the object. At the time of the surface, a force is generated between the positive electric field and a sense of feedback is generated during the contact and movement of the tactile feedback device 100 with the surface of the object. In addition, since the general sine wave signal is essentially a signal that periodically undulates over time, the force will exhibit a periodic size change. When the user slides on the surface of the object with the tactile feedback device 100, the periodic variation of the force will cause the user to feel the feedback feeling presented by the tactile feedback device 100 during the sliding of the tactile feedback device 100. Among them, this feedback feeling is, for example, a rough feeling. From another point of view, touch The feedback device 100 can let the user experience a tactile sensation like a concave-convex change on the surface of the object during the process in which the user slides on the surface of the object using the tactile feedback device 100.

It should be understood by those of ordinary skill in the art that regardless of the manner in which the driving signal DS is characterized, the corresponding tactile feedback signal can be associated with the electrical characteristics of the driving signal DS. The electrical characteristics are, for example, a waveform frequency, a waveform shape, a waveform phase, and a waveform amplitude of the drive signal DS, but are not limited thereto.

In addition, since the change of the tactile feedback signal can correspondingly change the force between the tactile feedback device 100 and the surface of the object, the tactile feedback signal can also be associated with the tactile sensation. For example, when the force corresponding to the haptic feedback signal is small, the user will feel a tactile sensation as if the tactile feedback device 100 was in contact with the surface of the smoother object. On the other hand, when the force corresponding to the tactile feedback signal is large, the user will feel the tactile sensation as if the tactile feedback device 100 is in contact with the surface of the undulating object.

In other embodiments, a switch structure (not shown) may be further disposed between the signal generator 110 and the haptic feedback structure 120. This switch structure is, for example, a mechanical switch that can be turned "on" or "off" in response to user switching. For example, the switch structure can be connected to a power switch (not shown) on the housing 210, for example. When the user switches the power switch to the startup state, the switch structure can be switched to the on state correspondingly. When the switch structure is in the on state, the signal generator 110 can provide the driving signal DS to the tactile feedback structure 120. At this time, the tactile feedback structure 120 can generate a force between the surface of the object and the object, thereby providing the Tactile feelings. From another point of view, if the switch is in the off state, the tactile feedback device 100 will not be able to provide the user's tactile sensation because the tactile feedback structure 120 cannot receive the drive signal DS. In addition, the outer casing 210 may additionally be coated with a layer of conductive layer for assisting grounding of various components within the tactile feedback device 100. Alternatively, the tactile feedback device 100 itself may have electrically conductive properties to assist in grounding the various components.

2 is a schematic diagram of a haptic feedback device according to an embodiment of the disclosure. In the present embodiment, the haptic feedback device 100 can be implemented, for example, in the form of a touch input device. The haptic feedback device 100 can include a housing 210 and an end point 220. The end point 220 is, for example, one end of a touch input device that allows a user to touch the surface of the object. Additionally, haptic feedback structure 120 can be disposed at endpoint 220 to create the various interactions described above with respect to the surface of the object.

Referring to FIG. 2 , the haptic feedback structure 120 can include an electrode 122 and an insulator 124 . The electrode 122 is coupled to the signal generator 110 for providing a tactile feedback signal in response to the drive signal DS from the signal generator 110. The insulator 124 is disposed on one side of the electrode 122 to provide a contact portion of the tactile feedback device 100 for contacting the surface of the object. In other words, when the user touches the surface of the object with the end point 220 of the tactile feedback device 100, the touch is substantially performed by the insulator 124. As illustrated in the embodiment of FIG. 1, since the electrode 122 can generate a tactile feedback signal according to the driving signal DS, when the user touches the surface of the object having the same or opposite polarity electric field as the tactile feedback signal with the end point 220, A corresponding tactile sensation will be experienced due to the force between the electrode 122 and the electric field on the surface of the object. For details about the interaction force between the tactile feedback device 100 and the surface of the object, refer to the description in the embodiment of FIG. 1. Ming, I will not repeat them here. In addition, although the electrode 122 and the insulator 124 shown in FIG. 2 are designed in a partial contact manner, in other embodiments, the designer may design the electrode 122 and the insulator 124 to be in full contact, but the disclosure is disclosed. Not limited to this.

3 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 2. In the embodiment, the haptic feedback device 300 further includes a detection module 130. The detection module 130 is connected to the signal generator 110 for detecting whether a pressing operation has occurred. The pressing operation is, for example, a pressing (or triggering) behavior occurring on the outer casing 210, or a pressing (or triggering) behavior occurring between the tactile feedback structure 120 and the surface of the object. When the detecting module 130 detects that a pressing operation occurs, the detecting module 130 can provide the starting signal AS to the signal generator 110 to control the signal generator 110 to provide the driving signal DS. From another point of view, the detection module 130 can be regarded as a switch that triggers the haptic feedback structure 120 to provide a tactile feedback signal. In other words, when the detecting module 130 determines that the pressing operation occurs, the haptic feedback structure 120 can correspondingly generate the haptic feedback signal, thereby allowing the haptic feedback device 300 to feedback the user's tactile sensation. In this way, when the detecting module 130 does not detect the pressing operation, the signal generator 110 can provide the driving signal DS to the haptic feedback structure 120 because the starting signal AS is not received, thereby achieving power saving effect. .

Several embodiments that can be used to detect the pressing operation are provided below to further illustrate possible embodiments of the present disclosure. However, it should be understood by those skilled in the art that the following embodiments are used to illustrate the spirit of the disclosure and are not intended to limit the embodiments of the disclosure.

4A is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 3. In the present embodiment, the insulator in the haptic feedback structure 120 (corresponding to the insulator 124 in Fig. 3) can be realized by the piezoelectric film 124'. The piezoelectric film 124' is connected to the detecting module 130 through the electrode 122 for detecting whether a pressing operation occurs between the haptic feedback structure 120 and the surface of the object. When the pressing operation occurs, the piezoelectric film 124 ′ can provide the sensing signal SS to the detecting module 130 through the electrode 122 in response to the pressure of the pressing operation, so that the detecting module 130 provides the start signal AS to the signal generation. 110. Then, the signal generator 110 can provide the driving signal DS to the electrode 122 in response to the activation signal AS. Thus, the electrode 122 can exert a force on the surface of the object in accordance with the manner described in the embodiment of FIG. 1, thereby allowing the tactile feedback device 400 to provide a tactile sensation to the user. In other words, when the user touches (e.g., presses) the surface of the object with the piezoelectric film 124', the electrode 122 can correspondingly generate a tactile feedback signal, thereby allowing the electrode 122 to interact with the surface of the object to create various interactions previously taught.

In other embodiments, the switch structure (not shown) mentioned in the embodiment of FIG. 1 can be further configured between the detection module 130 of FIG. 4A and the haptic feedback structure 120, which can be turned on in response to user switching. Or disconnected. When the switch structure is in the on state, the sensing signal SS can be transmitted to the detecting module 130, so that the detecting module 130 can provide the starting signal AS to the signal generator 110. The signal generator 110 can then provide the drive signal DS to the electrode 122 in response to the enable signal AS, and in turn allow the electrode 122 to interact with the surface of the object to produce various interactions as previously taught. However, when the switch is in the off state, since the sensing signal SS cannot be transmitted to the detecting module 130, the tactile feedback device 400 cannot correspondingly provide the tactile sensation.

4B is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 4A. In this embodiment, the haptic feedback device 400 can further include a switch SW, the first end of which is coupled to the electrode 122, the second end of which is coupled to the detecting module 130, and the third end of which is coupled to the signal generator 110. . The switch SW can switch back and forth between the detection module 130 and the signal generator 110 in response to a control signal of a controller (not shown). When the switch SW is connected to the detecting module 130, and the piezoelectric film 124' touches the surface of the object, the piezoelectric film 124' can provide the sensing signal SS to the detecting module 130 through the electrode 122, and correspondingly The signal generator 110 generates a drive signal DS. Then, when the switch SW is switched to be connected to the signal generator 110, the driving signal DS can be transmitted to the electrode 122, thereby allowing the electrode 122 to generate various interactions with the previously taught surface.

FIG. 5A is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 3. FIG. In the haptic feedback device 500 of the embodiment, the detection module 130 includes a specific electrode 132, a specific insulator 134, and a sensing unit 136. The specific electrode 132 is disposed at the end point 220, and a capacitance value change is generated between the electrode 122 and the electrode 122 in response to the pressing operation. The specific insulator 134 is disposed between the electrode 122 and the specific electrode 132 to isolate the electrode 122 and the specific electrode 132. The sensing unit 136 is connected to the signal generator 110 and the specific electrode 132 and the electrode 122, and provides the activation signal AS to the signal generator 110 in response to the change in the capacitance value.

In other words, when the haptic feedback device 500 touches the surface of the object with the end point 220, a change in capacitance value between the specific electrode 132 and the electrode 122 is correspondingly caused. Therefore, the sensing unit 136 can determine that the pressing operation occurs according to the change of the capacitance value, and further, the driving signal DS is provided by the activation signal AS control signal generator 110. In this way, the electrode 122 can generate the tactile feedback signal according to the driving signal DS, thereby generating various interaction behaviors with the previously taught surface, and will not be described herein.

In other embodiments, the switch structure (not shown) mentioned in the embodiment of FIG. 1 may be further configured between the sensing unit 136 of FIG. 5A and the specific electrode 132, which may be turned on or off in response to user switching. open. When the switch structure is in an on state, the sensing unit 136 can detect a change in the capacitance value between the specific electrode 132 and the electrode 122. However, when the switch is in the off state, since the sensing unit 136 cannot detect the change in the capacitance value between the specific electrode 132 and the electrode 122, the tactile feedback device 500 cannot correspondingly provide the tactile sensation.

FIG. 5B is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 5A. In this embodiment, the haptic feedback device 500 can further include a switch SW having a first end coupled to the electrode 122, a second end coupled to the sensing unit 136, and a third end coupled to the signal generator 110. The switch SW can switch back and forth between the sensing unit 136 and the signal generator 110 in response to a control signal of a controller (not shown). When the switch SW is connected to the sensing unit 136, and the capacitance value changes between the specific electrode 132 and the electrode 122, the sensing unit 136 can determine that the pressing operation occurs according to the change of the capacitance value, and further activate the signal. The AS control signal generator 110 provides a drive signal DS. Then, when the switch SW is switched to be connected to the signal generator 110, the driving signal DS can be transmitted to the electrode 122, thereby allowing the electrode 122 to generate various interactions with the previously taught surface.

In this embodiment, the specific electrode 132 and the electrode 122 may also be designed according to the needs of the designer to be reactive with the pressing operation when a pressing operation occurs. And the resistance value changes. Therefore, the sensing unit 136 can provide the activation signal AS to the signal generator 110 in response to the change in the resistance value between the specific electrode 132 and the electrode 122, so that the electrode 122 can correspondingly generate various interactions with the previously taught surface. I will not repeat them here.

FIG. 6 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 3. FIG. In the haptic feedback device 600 of the embodiment, the detection module 130 includes a sensing unit 136 and a specific electrode 610. In addition, the outer casing 210 includes a grip portion 630, which is disposed at a position that is normally held by a general user when holding the tactile feedback device 600, but is not limited thereto. The specific electrode 610 is disposed on the grip portion 630. Therefore, when the user holds the tactile feedback device 600 (ie, a pressing operation on the outer casing 210 occurs), the specific electrode 610 can be touched, thereby causing the specific electrode 610 to undergo a change in resistance value and/or a change in capacitance value (for example, , self-contained value changes). When the resistance value changes and/or the capacitance value change occurs, the sensing unit 136 can provide the activation signal AS to the signal generator 110 in response to the resistance value change and/or the capacitance value change, so that the electrode 122 can be correspondingly generated on the surface of the object. The various interactive behaviors previously taught are not repeated here.

FIG. 7 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 6. In the haptic feedback device 700 of the embodiment, the detection module 130 further includes a specific electrode 710. The specific electrode 710 is also disposed in the grip portion 630. In other words, when the user holds the tactile feedback device 700 (ie, a pressing operation on the outer casing 210 occurs), the specific electrodes 610 and 710 can be simultaneously touched, thereby causing a resistance value change between the specific electrodes 610 and 710. / or capacitance value changes (for example, mutual capacitance value change ()). When the resistance value changes and/or the capacitance value change occurs, the sensing unit 136 can provide the activation signal AS to the signal generator 110 in response to the resistance value change and/or the capacitance value change, so that the electrode 122 can be correspondingly generated on the surface of the object. The various interactive behaviors previously taught are not repeated here.

In addition, in other embodiments, the sensing unit 136 in FIG. 7 can also detect whether a self-contained value change occurs on the specific electrodes 610 and 710, respectively. When the self-capacitance value changes on the specific electrode 610 and/or 710, the sensing unit 136 can also provide the activation signal AS to the signal generator correspondingly, so that the electrode 122 can correspondingly generate various interaction behaviors with the previously taught surface. I will not repeat them here.

FIG. 8A is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 3. FIG. In the haptic feedback device 800 of the present embodiment, the haptic feedback structure 120 further includes a specific electrode 123 and a specific insulator 125. The specific electrode 123 is connected to the signal generator 110 and the insulator 124. The specific insulator 125 is connected to the electrode 122 and the specific electrode 123. The specific electrode 123 and the electrode 122 are disposed on the same side of the insulator 124, and the specific electrode 123 and the electrode 122 are disposed between the insulator 124 and the specific insulator 125. The detection module 130 includes a sensing unit 136 that is connected to the signal generator 110, the electrode 122, and the specific electrode 123. When a change in capacitance occurs between the electrode 122 and the specific electrode 123, the activation signal AS is supplied to the signal generator 110. Then, in addition to providing the driving signal DS to the electrode 122, the signal generator 110 can further provide the driving signal DS to the specific electrode 123, so that the specific electrode 123 also generates a tactile feedback signal.

Therefore, when the user touches the surface of the object with the end point 220, the corresponding A change in capacitance value (for example, a change in mutual capacitance value) is generated between the electrode 122 and the specific electrode 123. In this way, the sensing unit 136 can determine that the pressing operation occurs between the haptic feedback structure 120 and the surface of the object according to the change of the capacitance value, and then the driving signal DS is provided by the activation signal AS by the activation signal AS. In this way, the electrode 122 and the specific electrode 123 can generate the tactile feedback signal according to the driving signal DS, thereby generating various interaction behaviors with the surface of the object, and will not be described herein.

In addition, although the member for insulating the electrode 122 and the specific electrode 123 is not shown between the electrode 122 and the specific electrode 123 in FIG. 8A, in other embodiments, the designer may set between the electrode 122 and the specific electrode 123. A specific insulating layer is used to insulate the electrode 122 and the specific electrode 123. Alternatively, the designer can also design the position of the insulator 124 between the electrode 122 and the specific electrode 123 for insulating the electrode 122 and the specific electrode 123. However, the embodiments of the present disclosure are not limited thereto.

FIG. 8B is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 8A. In this embodiment, the haptic feedback device 800 can further include a switch SW, the first end of which is coupled to the electrode 122 and the specific electrode 123, the second end of which is coupled to the sensing unit 136, and the third end of which is coupled to the signal Generator 110. The switch SW can switch back and forth between the sensing unit 136 and the signal generator 110 in response to a control signal of a controller (not shown). When the switch SW is connected to the sensing unit 136, and the capacitance value changes between the electrode 122 and the specific electrode 123, the sensing unit 136 can determine that the pressing operation occurs according to the change of the capacitance value, and further activate the signal. AS Control News The number generator 110 provides a drive signal DS. Then, when the switch SW is switched to be connected to the signal generator 110, the driving signal DS can be transmitted to the electrode 122 and the specific electrode 123, thereby allowing the electrode 122 and the specific electrode 123 to generate various interactions with the surface of the object.

FIG. 9A is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 3. FIG. In the haptic feedback device 900 of the present embodiment, the haptic feedback structure 120 further includes a specific insulator 126. The specific insulator 126 is connected to the electrode 122, and the insulator 124 and the specific insulator 126 are respectively disposed on the first side and the second side of the electrode 122. The detection module 130 includes a sensing unit 136 connected to the signal generator 110 and the electrode 122. When the electrode 122 changes in capacitance value (for example, the self-capacity value changes), the sensing unit 136 provides the activation signal AS to the signal generator 110. Then, the signal generator 110 can provide the driving signal DS to the electrode 122 to cause the electrode 122 to generate a tactile feedback signal.

Therefore, when the user touches the surface of the object with the end point 220, a change in the capacitance value (for example, a change in the self-contained value) is generated correspondingly on the electrode 122. In this way, the sensing unit 136 can determine that the pressing operation occurs between the haptic feedback structure 120 and the surface of the object according to the change of the capacitance value, and then the driving signal DS is provided by the activation signal AS by the activation signal AS. In this way, the electrode 122 can generate the tactile feedback signal according to the driving signal DS, thereby generating various interaction behaviors with the previously taught surface, and will not be described herein.

FIG. 9B is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 9A. In this embodiment, the haptic feedback device 900 may further include a switch SW, which is first The second end is coupled to the sensing unit 136 and the third end is coupled to the signal generator 110. The switch SW can switch back and forth between the sensing unit 136 and the signal generator 110 in response to a control signal of a controller (not shown). When the switch SW is connected to the sensing unit 136, and the electrode 122 generates a change in the capacitance value, the sensing unit 136 can determine that the pressing operation occurs according to the change of the capacitance value, and further control the signal generator 110 with the activation signal AS. Provide drive signal DS. Then, when the switch SW is switched to be connected to the signal generator 110, the driving signal DS can be transmitted to the electrode 122, thereby allowing the electrode 122 to generate various interactions with the previously taught surface.

FIG. 10 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 3. FIG. In the haptic feedback device 1000 of the embodiment, the detection module 130 includes a sensing unit 136 and a photo sensor 1010. The photo sensor 1010 is disposed at the end point 220 for determining whether a pressing operation occurs according to the light characteristic of the surface of the object. The light characteristics of the surface of the object include, for example, the light intensity or color of the surface of the object. In addition, in other embodiments, the photo sensor 1010 can include a lens, and the lens can take an image of the surface of the object, thereby obtaining image resolution, image brightness, image spectrum distribution, image color number, etc. associated with the surface of the object. The image content characteristics are used to determine whether a press operation has occurred.

The sensing unit 136 is connected to the photo sensor 1010 and the signal generator 110. When the photo sensor 1010 determines that the pressing operation occurs, the photo sensor 1010 can provide the sensing signal SS to the sensing unit 136, so that the sensing unit 136 reacts to the sensing signal SS to provide the activation signal AS to the signal generator 110. . Then, the signal generator 110 can provide the driving signal DS to the electrode 122 to cause the electrode 122 to generate a tactile feedback signal.

Therefore, when the user touches the surface of the object with the end point 220, the photo sensor 1010 can provide the sensing signal SS to the sensing unit 136 after sensing the light characteristic of the surface of the object. In this way, the sensing unit 136 can determine that the pressing operation occurs between the haptic feedback structure 120 and the surface of the object according to the sensing signal SS, and then the driving signal DS is provided by the activation signal AS control signal generator 110. In this way, the electrode 122 can generate the tactile feedback signal according to the driving signal DS, thereby generating various interaction behaviors with the previously taught surface, and will not be described herein.

In other embodiments, the switch structure (not shown) mentioned in the embodiment of FIG. 1 can be further configured between the sensing unit 136 of FIG. 10 and the photo sensor 1010, which can be turned on in response to user switching. Or disconnected. When the switch structure is in an on state, the sensing signal SS can be transmitted to the sensing unit 136, so that the sensing unit 136 can provide the activation signal AS to the signal generator 110. The signal generator 110 can then provide the drive signal DS to the electrode 122 in response to the enable signal AS, and in turn allow the electrode 122 to interact with the surface of the object to produce various interactions as previously taught. However, when the switch is in the off state, since the sensing signal SS cannot be transmitted to the detecting module 130, the tactile feedback device 1000 cannot correspondingly provide the tactile sensation.

11 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 2. In the present embodiment, the haptic feedback device 1100 includes an accelerator 1110 that is connectable to the signal generator 110 in addition to all of the components of FIG. The accelerator 1110 can be used to determine whether the acceleration when the tactile feedback device 1100 moves exceeds a threshold value. If so, the accelerator 1110 can provide the activation signal AS to the signal generator 110 to control the signal generator 110 to provide the driving signal DS. In addition, the accelerator 1110 can be further based on The moving speed of the tactile feedback device 1100 adjusts the activation signal AS, and the signal generator 110 adjusts the driving signal DS accordingly. Specifically, the signal generator 110 can adjust the electrical characteristics of the driving signal DS according to the activation signal AS, so that the haptic feedback device 1100 correspondingly returns different tactile sensations.

FIG. 12 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 2. FIG. In the present embodiment, the haptic feedback device 1200 includes, in addition to all of the components of FIG. 2, a gyroscope 1210 that can be coupled to the signal generator 110. Gyroscope 1210 can be used to determine if the horizontal displacement of haptic feedback device 1200 exceeds a threshold. If so, the gyroscope 1210 can provide the activation signal AS to the signal generator 110 to control the signal generator 110 to provide the driving signal DS. In addition, the gyroscope 1210 can further adjust the activation signal AS according to the horizontal displacement degree of the tactile feedback device 1200, thereby allowing the signal generator 110 to adjust the driving signal DS accordingly. Specifically, the signal generator 110 can adjust the electrical characteristics of the driving signal DS according to the activation signal AS, so that the haptic feedback device 1200 can correspondingly feedback different tactile sensations.

FIG. 13 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. 2. FIG. In the present embodiment, the haptic feedback device 1300 includes, in addition to all the components of FIG. 2, a wireless communication unit 1310 that can be connected to the signal generator 110. The wireless communication unit 1310 can be used to connect to an electronic device (not shown) having the surface of the object through a communication protocol. Specifically, the communication protocol is, for example, Bluetooth, Zigbee, Wireless Fidelity (Wi-Fi), Worldwide Interoperability for Microwave Access (WiMAX), Radio Frequency (radio-frequency). Identification,RFID) and / Or a communication protocol such as Long Term Evolution (LTE), but the embodiments of the present disclosure are not limited thereto. The electronic device is, for example, a personal computer (PC), a notebook computer, a tablet computer, a netbook, a mobile phone, a smart phone, an automated teller machine, etc., and the surface of the object is, for example, a screen surface of an electronic device. When the haptic feedback device 1300 moves on the surface of the object of the electronic device, the wireless communication unit 1310 can receive the feedback signal strength from the electronic device, and provide the activation signal AS to the signal generator 110 according to the feedback signal strength to control the signal generator 110. Provide drive signal DS. In detail, the wireless communication unit 1310 can adjust the activation signal AS according to the feedback signal strength, and then the signal generator 110 adjusts the driving signal DS accordingly. The signal generator 110 can adjust the electrical characteristics of the driving signal DS according to the activation signal AS, so that the haptic feedback device 1300 can correspondingly feedback different tactile sensations.

FIG. 14 is a schematic diagram of a tactile feedback device according to the embodiment of FIG. In this embodiment, the detection module 130 of the haptic feedback device 1400 includes a sensing unit 136 and a temperature sensing layer 1410. The temperature sensing layer 1410 can be disposed on the grip portion 630, but is not limited thereto. The sensing unit 136 is connected to the signal generator 110 and the temperature sensing layer 1410. The temperature sensing layer 1410 is, for example, a heat sensitive material. When the user holds the grip portion 630, the temperature sensing layer 1410 can sense the temperature change of the grip portion 630 due to the user's grip, and correspondingly generate an electrical change (eg, a resistance value). . The temperature sensing layer 1410 can provide the enable signal AS to the signal generator 110 when the temperature sensing layer 1410 reacts to the temperature change to generate an electrical change greater than a threshold.

In other embodiments, the various tactile feedback devices listed above can be configured on a conventional glove. For example, the tactile feedback structure can be placed on each finger of the glove. The tip is such that the user can experience the tactile sensation fed back by the tactile feedback structure of each fingertip after wearing the glove, which is different from the previous experience. In this way, the glove configured with the tactile feedback device can be applied to, for example, the interaction of the game, or as an auxiliary tool for the blind person's touch, but the disclosure is not limited thereto. In addition, the various tactile feedback devices listed above can also be configured in a mouse or a keyboard, so that the user can correspondingly feel the tactile sensation fed back by the tactile feedback device when operating the mouse or the keyboard.

In summary, the haptic feedback device provided by the embodiment of the present disclosure can cause the haptic feedback device to generate corresponding electrical characteristics by the force between the haptic feedback structure and the surface of the object. In this way, when the user touches the surface of the object by the tactile feedback device, the tactile sensation such as the unevenness of the surface of the object can be felt due to the electrical characteristics of the tactile feedback device.

The present disclosure has been disclosed in the above embodiments, but it is not intended to limit the disclosure, and any person skilled in the art can make some changes and refinements without departing from the spirit and scope of the disclosure. The scope of protection of this disclosure is subject to the definition of the scope of the appended claims.

100‧‧‧Tactile feedback device

110‧‧‧Signal Generator

120‧‧‧Tactile feedback structure

DS‧‧‧ drive signal

Claims (17)

  1. A haptic feedback device includes: a signal generator for providing a driving signal; and a haptic feedback structure connected to the signal generator for reacting to the driving signal to touch an object surface or a haptic feedback device Providing a tactile feedback signal when the outer casing is touched, and providing a tactile sensation by an interaction force between the tactile feedback signal and an electric field on the surface of the object, wherein the tactile feedback signal is associated with the tactile sensation, wherein The haptic feedback signal is associated with an electrical characteristic of the drive signal.
  2. The haptic feedback device of claim 1, wherein the haptic feedback structure is disposed at an end of the housing, and the haptic feedback structure comprises: an electrode connected to the signal generator, responsive to the driving signal Providing the haptic feedback signal; and an insulator disposed on one side of the electrode to provide a contact portion of the haptic feedback device for touching the surface of the object.
  3. The haptic feedback device of claim 2, wherein the haptic feedback device further comprises a detection module coupled to the signal generator to detect whether a pressing operation occurs, wherein when the pressing operation occurs The detection module provides an activation signal to the signal generator to control the signal generator to provide the driving signal, wherein the pressing operation occurs between the outer casing and/or the tactile feedback structure and the surface of the object.
  4. The haptic feedback device of claim 3, wherein the insulator comprises a piezoelectric film, and the piezoelectric film provides a feeling through the electrode when the pressing operation occurs between the haptic feedback structure and the surface of the object. The test signal is sent to the detection module to enable the detection module to provide the activation signal to the signal generator.
  5. The haptic feedback device of claim 3, wherein the detecting module comprises: a specific electrode disposed at the end point, and generating a resistance value change in response to the pressing operation; a sensing unit, connecting The specific electrode and the signal generator are configured to provide the activation signal to the signal generator in response to the change in the resistance value; and a specific insulator disposed between the specific electrode and the electrode to isolate the specific electrode and the electrode .
  6. The haptic feedback device of claim 3, wherein the detecting module comprises: a specific electrode disposed at the end point, generating a capacitance value change in response to the pressing operation; a sensing unit, connecting The signal generator and the specific electrode are configured to provide the activation signal to the signal generator when the capacitance value changes; and a specific insulator disposed between the specific electrode and the electrode to isolate the specific electrode and the electrode.
  7. The haptic feedback device of claim 3, wherein the outer casing The device includes a holding portion, and the detecting module includes: a specific electrode disposed on the holding portion; and a sensing unit connected to the signal generator and the specific electrode, when a resistance value changes occurs in the specific electrode And/or when a capacitance value changes, the activation signal is provided to the signal generator.
  8. The haptic feedback device of claim 3, wherein the housing comprises a holding portion, and the detecting module comprises: a first specific electrode disposed on the holding portion; a second specific electrode, Disposed on the holding portion; and a sensing unit connecting the signal generator, the first specific electrode and the second specific electrode, and a resistance value change occurs between the first specific electrode and the second specific electrode And/or when a capacitance value changes, the activation signal is provided to the signal generator.
  9. The haptic feedback device of claim 3, wherein the haptic feedback structure further comprises: a specific electrode connecting the insulator and the signal generator; and a specific insulator connecting the electrode and the specific electrode, wherein The electrode and the specific electrode are disposed on the same side of the insulator, wherein the electrode and the specific electrode are disposed between the insulator and the specific insulator, and the detecting module comprises: a sensing unit connected to the signal to generate , the electrode and the specific electrode, and when a change in capacitance occurs between the electrode and the specific electrode, The start signal is provided to the signal generator.
  10. The haptic feedback device of claim 9, wherein the signal generator further provides the driving signal to the specific electrode in response to the activation signal, so that the specific electrode generates the haptic feedback signal.
  11. The haptic feedback device of claim 3, wherein the haptic feedback structure further comprises: a specific insulator connecting the electrodes; wherein the insulator and the specific insulator are respectively disposed on the first side and the second side of the electrode On the side, the detecting module includes: a sensing unit connected to the signal generator and the electrode, and the sensing unit provides the starting signal to the signal generator when a change in the capacitance value occurs.
  12. The haptic feedback device of claim 3, wherein the detecting module comprises: a light sensor disposed at the end point, determining whether the pressing operation occurs according to a light characteristic of the surface of the object; a sensing unit is connected to the photo sensor and the signal generator, wherein when the photo sensor determines that the pressing operation occurs, the photo sensor provides a sensing signal to the sensing unit, so that the The sensing unit provides the activation signal to the signal generator in response to the sensing signal.
  13. The tactile feedback device of claim 1, wherein the electric device The gas characteristics include a waveform frequency of the drive signal, a waveform shape, a waveform phase, and a waveform amplitude.
  14. The haptic feedback device of claim 2, wherein the haptic feedback device further comprises an accelerator coupled to the signal generator for determining whether an acceleration of the haptic feedback device moves exceeds a threshold; The accelerator provides an activation signal to the signal generator to control the signal generator to provide the driving signal.
  15. The haptic feedback device of claim 2, wherein the haptic feedback device further comprises a gyroscope connected to the signal generator for determining whether a horizontal displacement of the haptic feedback device exceeds a threshold value; The gyroscope provides an activation signal to the signal generator to control the signal generator to provide the driving signal.
  16. The haptic feedback device of claim 2, wherein the haptic feedback device further comprises a wireless communication unit coupled to the signal generator for connecting to an electronic device having the surface of the object through a communication protocol. The wireless communication unit receives a feedback signal strength from the electronic device when the haptic feedback device moves on the surface of the electronic device, and provides a startup number to the signal generator according to the feedback signal strength. To control the signal generator to provide the driving signal.
  17. The haptic feedback device of claim 3, wherein the housing comprises a grip portion, and the detecting module comprises: a temperature sensing layer disposed on the grip portion; a sensing unit, connected to the signal generator and the temperature sensing layer, when the temperature sensing layer reacts to a temperature change to generate a resistance value change greater than a threshold value, providing the startup signal to the signal generator .
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